I've used the SunTour tool for many years, but a couple years ago decided get the Park tool.
The Park tool is definitely sturdier, but as the SunTour held up well for over 20 years I don't know the significance of that.
I've heard good reports on Shimano's tool but have no personal experience.
Cable end-cap crimping is equally easy with either the SunTour or Park tools.
I use a bench grinder to finish the ends of the housing.
YMMV.